[PATCH] D26855: New unsafe-fp-math implementation for X86 target
Andrew V. Tischenko via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jan 16 03:18:38 PST 2017
avt77 updated this revision to Diff 84535.
avt77 added a comment.
I fixed everything except one comment (see below). And I collected new perf numbers. Now I used the following command for bootstrap building:
time make -j 1
As result the reproducing is very well from my point of view. In addition I tried to get numbers accordingly to description in http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20161017/398831.html . The reproducing is almost the same but the required time is even longer (about 2 hours for every test). Because of that I kept my numbers. The test itself is very simple: I created 2 versions of compiler: the first one was built directly from trunk and the second one was built after applying of my patch. Then with help of every compiler I created 4 bootstraps. The results are below:
The trunk version of the compiler builds the bootstrap like here (there were 4 starts with "time make -j 1"):
The version of the compiler with my patch builds the bootstrap like here (there were the same 4 starts with "time make -j 1"):
Obviously, the compilation time does not depend on my patch.
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